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  2. Two-wire circuit - Wikipedia

    en.wikipedia.org/wiki/Two-wire_circuit

    A modern line card has no two-to-four wire conversion whatsoever; it is strictly an analog/digital interface to a system that has a completely digital and integrated signal path internally. Using actual wires to circuit switch a telephone call became obsolete when the crossbar switch (a mechanical system) was replaced by 4ESS electronic ...

  3. SAE J1708 - Wikipedia

    en.wikipedia.org/wiki/SAE_J1708

    The standard defines a 2-wire 18 gauge wire cable that can run up to 130 feet (40 m) and operates at 9600 bit/s. A message is composed of up to 21 characters, unless the engine is stopped and the vehicle is not moving in which case transmitters are allowed to exceed the 21 byte max message length.

  4. Wire protocol - Wikipedia

    en.wikipedia.org/wiki/Wire_protocol

    Wire protocols provide the means for a program running under one operating system to communicate with a program running under some other operating system over a network such as an organization's intranet or the Internet. The protocol thus interconnects multiple platforms.

  5. Apache Avro - Wikipedia

    en.wikipedia.org/wiki/Apache_Avro

    It uses JSON for defining data types and protocols, and serializes data in a compact binary format. Its primary use is in Apache Hadoop, where it can provide both a serialization format for persistent data, and a wire format for communication between Hadoop nodes, and from client programs to the Hadoop services. Avro uses a schema to structure ...

  6. SymPy - Wikipedia

    en.wikipedia.org/wiki/SymPy

    SymPy is an open-source Python library for symbolic computation.It provides computer algebra capabilities either as a standalone application, as a library to other applications, or live on the web as SymPy Live [2] or SymPy Gamma. [3]

  7. Serial Peripheral Interface - Wikipedia

    en.wikipedia.org/wiki/Serial_Peripheral_Interface

    Examples include pen-down interrupts from touchscreen sensors, thermal limit alerts from temperature sensors, alarms issued by real-time clock chips, SDIO [note 7] and audio jack insertions for an audio codec. Interrupts to main may also be faked by using polling (similarly to USB 1.1 and 2.0).

  8. Machine code - Wikipedia

    en.wikipedia.org/wiki/Machine_code

    The IBM 704, 709, 704x and 709x store one instruction in each instruction word; IBM numbers the bit from the left as S, 1, ..., 35. Most instructions have one of two formats: Generic S,1-11 12-13 Flag, ignored in some instructions 14-17 unused 18-20 Tag 21-35 Y Index register control, other than TSX S,1-2 Opcode 3-17 Decrement 18-20 Tag 21-35 Y

  9. Numerical Electromagnetics Code - Wikipedia

    en.wikipedia.org/wiki/Numerical_Electromagnetics...

    The reports start by reprinting much of the input, which allows the user to check for errors. It then includes lengthy sections showing how the system broke the antenna down into segments. Finally, it begins to list calculated values, in tabular format. A small sample of the output from the sample above includes: